GOTS and OEKO-TEX answer different buyer questions. One proves organic supply-chain control; the other focuses on harmful substances in the finished textile. Many activewear brands need both — or neither — depending on channel claims and fibre content.
GOTS in plain language
The Global Organic Textile Standard (GOTS) covers organic fibre content (typically cotton), wet processing, social criteria and labeling rules. It is the right ask when you sell organic cotton yoga wear or need retailer compliance for organic claims in the EU / US. GOTS is a supply-chain standard: the certificate scope must cover the exact stages and products you will buy.
OEKO-TEX Standard 100
OEKO-TEX Standard 100 tests finished textiles for regulated / harmful substances. It does not prove organic farming. It is widely accepted for performance blends (nylon / spandex, polyester / elastane) where GOTS does not apply to the fibre mix. Buyers often request OEKO-TEX on fabric + critical trims (elastic, zippers, prints).
Which certification when?
| Your claim / channel | Start here | Notes |
|---|---|---|
| Organic cotton yoga wear | GOTS | Confirm mill + factory scope |
| Skin-safe synthetic activewear | OEKO-TEX Standard 100 | Fabric + trims |
| EU marketplace / retailer listing | Often both + REACH awareness | Claims must match docs |
| Performance nylon / spandex | OEKO-TEX | GOTS rarely applies |
| Recycled polyester story | GRS / RCS (separate) | Do not confuse with OEKO-TEX |
Questions to ask your factory
- Is the certificate scope for the exact fabric SKU and colourways you will bulk?
- Are zippers, elastics, heat-transfer labels and prints covered?
- Can they provide PDF + license number for your retailer audit pack?
- Who owns lab tests if the retailer requests a re-test on bulk?
Common buyer mistakes
Using OEKO-TEX as proof of “organic.” Assuming a mill certificate automatically covers garment assembly. Marketing “eco” claims that are not supported by the PO’s actual fibre content. For a broader sourcing checklist, see our activewear manufacturer guide.
Practical takeaway
Map each SKU to the claim on hangtags and PDP copy, then ask which document supports that claim. Do not treat certification as marketing wallpaper. Review our certifications page, fabric programs, or discuss compliance for your range.